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<head>
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  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
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<body>
<script>
  // TODO: html5 新特性
  // https://www.cnblogs.com/jane-panyiyun/p/13092297.html
  // 1. 语义标签, <header>, <footer>, <section> 等
  // 2. 增强型表单, html type 为 date, email, tel, color, range 等
  // 3. 音频和视频, <audio src=" "></audio>, <video src=" "></video>
  // 4. SVG
  // 5. WebStorage, localStorage, sessionStorage
  // ...
</script>
</body>
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